Smut-machihe



A. STRAUB. Smut Machine.

, Pat'entedMay 17, 1844.`

UNTED STATES FATENT FFXCE.

A. STRAUB, OF MILTON, PENNSYLVANIA.

SMUT-MACHINE.

Specification of Letters Patent No. 3,592, dated May 17, 1844.

To all whom t may concern: i

Be it known that I, ABRAHAM STRAUB, of Milton, in the county of Northumberland and State of Pennsylvania, have invented a new and useful Improvement in Machinery for Cleaning Grain of Smut, &c.;` and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, which forms a part of` my specification, in which- Figure l, is an isometrical view; Fig. 2 a section.

The nature of my invention consists in forming an involuted conductor for1 the grain7 from the center to the periphery, under the fan upon the runner, at which point it is subjected to the act-ion of the beaters and wind from the fan at the same time, and is cleared of all the loose dirt and smut, as fast as it is broken; and the wheat falls down into the fan below.

The construction is as follows: A suit-- able frame (a, 00,) is made, in which a concave, or lantern (o) is put; this is formed of square bars of iron, set vertically, and in a circle; and rests on aplatform (6') supported by the posts, below which a conical hopper (c) is affixed that conducts the grain down to a tube (d) below. Another platform (29) is placed underneath that above named and the space between them is inclosed by four sides7 which are put on outside the posts of the frame; the lower platform is connected with these sides, but the upper one has a space (3) between it and the four sides, through which dirt can fall and from which it can be taken through doors (e) o-n the sides; above platform (b) the lantern is inclo-sed in the same way as the box below with which it communicates by means of the opening (3) around the platform (b) doors (6') are also made in this partitionon the four sides, to open into the concave. Over the top of the concave there is a cover (f) shown separate in Fig. t. This cover is furnished with a ring of segments of metal near the outer circumference, which project a little into the concave and are ribbed radially. The runner is aiiixed to a vertical shaft (it) that runs thro-ugh the axis of the concave; it is com posed of a short cylinder (i) with flat heads z" 2'2 on the top of which are involute wings yond the periphery of the cylinder in a vertical position; this extends down` the outer circumference of the .cylinder at an angle of about 70o to the bottom thereof. There is a flat ring (Z)that extends over the fans nearly from the outer circumference of the cylinder to their inner ends; this in Fig. 3 is shown by redlines, andismore clearly represented at Fig. The grain is fed in through the central space `of the cover (f) and falls onto the cylinder and is then car ried out nearly in a radial line to the periphery by the involutes; when it reaches this point it is struck by the beater (j) and the smut balls &c. broken, and as soon as disengaged, is all blown out through the interstices of the machine; the inclination of the beaters serve to keep up the grain, and cause an upward current of air. The grain is forced against the ribbed segment ring on the cover, and also the bars of the concave or lantern where it is scoured, and gradually falls down into the conical part of the lantern (c) and out through the tube to the fan.

The action of this machine is to carry the grain from the center out to the periphery nearly in a radial line, the involute conductors serving that purpose without imparting to it much of the revolving motion of the runner or in any way breaking the smut balls. conductor it is struck by the beater (j) with great force and put suddenly into motion in a tangent line; this eectually breaks the smut balls just at a point where all the smut, dirt and other extraneous matte-r can be driven out through the lantern or concave, before it has time to attach itself to the wheat which then falls downward, the blastbeing produced by the fans above the conductors. By this construction the revolutions of the machine may be much slower Vhen it arrives at the end of the than ordinary ones for the same purpose, sur-mounted by a fan, the'whole being :tr and consequently will require less poWer to ranged substantially in the manner and for l0 drive it. the purpose herein described.

`VVhLt I claim as my invention and desire A STRAUB -to secure by Letters Patent is* Constructing the runner in the manner itnessesz set forth having involute conductors on it, Jol-1N Hrrz, intersected at the periphery by beaters and J. J. GREENOUGH. 

